lncRNA LINC00941调节MTA2/NuRD占用,以抑制过早的人类表皮分化
Eva Morgenstern1, Carolin Molthof1, Uwe Schwartz2
1Regensburg Center for Biochemistry (RCB), University of Regensburg, Regensburg, Germany.
Life science alliance
|April 22, 2024
概括
长非编码RNA LINC00941通过与NuRD复合体相互作用,在表观遗传上控制了角质细胞的分化. 这种相互作用抑制EGR3的表达,防止过早的表皮分化.
科学领域:
- 细胞生物学 细胞生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 皮肤病学 皮肤病学
背景情况:
- 长非编码RNAs (lncRNAs) 影响细胞功能,包括表皮平衡.
- 然而,许多lncRNA的精确机制在很大程度上仍未被阐明.
研究的目的:
- 研究lncRNA LINC00941在调节人类角质细胞分化中的作用和机制.
- 探索LINC00941与表皮发育中的染色体重塑复合体之间的相互作用.
主要方法:
- 在人类初级角质细胞中研究了lncRNA LINC00941与NuRD复合组件 (MTA2,CHD4) 的相互作用.
- 在LINC00941扰动时分析了NuRD占用在染色体域和特定基因位置 (例如EGR3) 的变化.
- 量化EGR3表达及其下游点在细胞和器官类型表皮模型中的丰富性.
主要成果:
- 在NuRD复合体内,lncRNA LINC00941与MTA2和CHD4直接相互作用.
- LINC00941的枯竭改变了在转录调节器附近的双价色色素域的NuRD复合体结合,包括EGR3.
- 在EGR3位点减少NuRD占用导致EGR3的表达增加,并随后上调表皮分化基因.
结论:
- lncRNA LINC00941在表观遗传上发挥作用,通过NuRD复合体调节状细胞的分化.
- LINC00941的作用是抑制未分化角质细胞中的EGR3表达,从而防止过早的表皮分化.
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